But if you are an American married to a foreign national and living in Foreignnationalisatan, your kid is a Foreignnationalisatani by birth, not an American.
Also if you get knocked up by an American (military or civilian) in Foreignnationalisatan, and you are Foreignnationalisatani, your kid is also a Foreignnationalisatani.
By itself, one American parent is no guarantee of American citizenship.
Nor is Citizenship, by itself, a qualifier for holding the office of President.
INA: ACT 301 - NATIONALS AND CITIZENS OF THE UNITED STATES AT BIRTHSec. 301. [8 U.S.C. 1401] The following shall be nationals and citizens of the United States at birth: (...)
(g) a person born outside the geographical limits of the United States and its outlying possessions of parents one of whom is an alien, and the other a citizen of the United States who, prior to the birth of such person, was physically present in the United States or its outlying possessions for a period or periods totaling not less than five years, at least two of which were after attaining the age of fourteen years: Provided, That any periods of honorable service in the Armed Forces of the United States, or periods of employment with the United States Government or with an international organization as that term is defined in section 1 of the International Organizations Immunities Act (59 Stat. 669; 22 U.S.C. 288) by such citizen parent, or any periods during which such citizen parent is physically present abroad as the dependent unmarried son or daughter and a member of the household of a person (A) honorably serving with the Armed Forces of the United States, or (B) employed by the United States Government or an international organization as defined in section 1 of the International Organizations Immunities Act, may be included in order to satisfy the physical-presence requirement of this paragraph. This proviso shall be applicable to persons born on or after December 24, 1952, to the same extent as if it had become effective in its present form on that date; and
“But if you are an American married to a foreign national and living in Foreignnationalisatan, your kid is a Foreignnationalisatani by birth, not an American. “
No, sorry, you’re mistaken about that.